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Sirenza Microdevices - DTV IF AGC AMPLIFIER

Numéro de référence S510067
Description DTV IF AGC AMPLIFIER
Fabricant Sirenza Microdevices 
Logo Sirenza Microdevices 





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S510067 fiche technique
S510067
DTV IF AGC AMPLIFIER
FEATURES
• SINGLE 3.3 V SUPPLY OPERATION
• Low DISTORTION: -55dBC@1VPP
• 14-68 dB TOTAL VOLTAGE GAIN
• 54 dB TOTAL GAIN CONTROL RANGE
• 10-100 MHZ OPERATION
DESCRIPTION
The S510067 consists of an input Linear AGC amplifier and a
video/AGC amplifier. The amplifiers are designed to interface
directly with saw filters and A/D converters The AGC is delayed
between the two blocks for optimal NF and IM3 performance
across the full AGC range. The final stage is capable of
providing 2 VPP into a 500load. The part is offered in the
QFN28 & 20 TSSOP package and is RoHS compliant.
FUNCTIONAL DIAGRAM
APPLICATIONS
• Digital Terrestrial Tuners • Digital TV Sets.
• Digital Radios • Digital Set top boxes.
ELECTRICAL CHARACTERISTICS (TA = 25°C, VDD = 3.3 V, unless otherwise specified)
SYMBOLS PARAMETERS AND CONDITIONS
RF Performance
RFIN
RF Input Frequency Range
RF Flatness Gain flaness
Rfin RF input power range
GMAX Maximum Gain*
VAGC AGC Voltage
AGC AGC Dynamic Range VAGC = 0 to 3 V
IM3 Third Order Intermodulation, 1 VPP Differential Output, 1K ohm load
UNITS
MHz
dB
dBmV
dB
V
dB
dBc
MIN
10
0
50
TYP
43.75
0.5
22
72
54
55
MAX
100
25
3
IFOUT
Gain
NF
NF
GINPUT
GVIDEO
IF Output Level, Differential Output, 1K ohm load
Change vs NF increase ratio
Noise Figure, VAGC = 3 V
Noise Figure, VAGC = 0 V
Input Video Amp Gain, VAGC = 3 V
Video Amp Gain, VAGC = 3 V
VPP 1
1.2 2
dB 2/1
dB 13.5
dB 30 32
dB 39
dB 47
DC Performance
VDD Supply Voltage
IDD Supply Current
V 3.3
mA 100 125
* Includes saw filter loss.
ABSOLUTE MAXIMUM RATINGS
(TC = 25°C unless otherwise noted)
SYMBOLS
PARAMETERS
UNITS RATINGS
VDD (GND) Supply Voltage (GND)
V -0.3 to +3.6
Note:
1. Operation in excess of any one of these parameters may
result in permanent damage.
TOP Operating Temperature
°C -40 to +85
TSTG
Storage Temperature
°C -65 to +150
Junction Temperature °C +150
Thermal Resistance (Ø ja) °C/W
34
Performance tests and ratings for Sirenza Microdevices’ products were performed internally by Sirenza and measured using specific computer systems and/or components and reflect the approximate
performance of the products as measured by those tests. Any difference in circuit implementation, test software, or test equipment may affect actual performance. The information provided herein is
believed to be reliable at press time and Sirenza Microdevices assumes no responsibility for the use of this information. All such use shall be entirely at the user’s own risk. Prices and specifications for
Sirenza Microdevices’ products are subject to change without notice. Buyers should consult Sirenza Microdevices’ standard terms and conditions of sale for Sirenza’s limited warranty with regard to its
products. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Sirenza Microdevices does not authorize or warrant any product for use in life-
support devices and/or systems.
303 S. Technology Court, Broomfield, CO 80021
303-327-3030
www.sirenza.com
1
EDS-104217 REV.G
11/7/2005

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